Means for operating internal-combustion engines



' May 29, 1928.

W. W. MUIR MEANS FOR OPERATING INTERNAL COMBUSTION ENGINES Filed Nov. 151922 W WMuir Inventor J a 404% A it arzu y Patented May 29, 1928.

gar L a s g Fix; and 1.1m? al seize-unwittin WELLINGTON w. MUIR, onLooKronT, new YORK, Assienon ro nannrson RADIATOR oonronarron, onLOCKPORT, NEW YORK.

MEANS FOR OPERATING- IHTEENAL-COMBUSTION ENGINES,

Application filed November 13, 1922. Serial No. 800,637.

I resents the jacket or" the'engine, 87 a tank located above the same,and 8G a connection between said tank and said jacket. 88 represents afilling cap for the tank 87, and 89 and 90 represent passages leading"from said tank87 to the cross-flow radiators 91, only:

one of which is shown.

The special advantage of a cross flow radiator is disclosed in mycopcnding application Serial No. 582,217, filed August 16, 1922, andentitled Radiators for internal combustion engines. That is, eachradiator is provided with a vapor space 92 from which leads a pluralityof condensing passages 93 to the tank or receptacle 9 1 for thecondensate and from this receptacle 9 1 leads the passage 95 to thechamber 96 provided with the valve 97 and from said chamber 96 leads thepassage 98 controlled by the valve 99.

The passage 100 joins the passage 98 and leads to the suction side ofthe Venturi tube 101 to which the pump 102 is connected. From the tank87 leads the bypass 103 to the suction side of said pump 102. Inoperation the pump 102 continuouslycirculates the fluid through theVenturi tube 101, through the jacket 85, through the tank 87, throughthe passage 103 and back to the suction side of the pump. The Venturitube in the meantime sucks the condensed fluid from the receptacle 94through the passage 95 into the receptacle 96, past valve 99 and throughthe passage 100 back to the jacket 85. This particular cooling system isespecially adapted for aeroplanes, for when the demands on the engineare such as to increase the temperature of the water to the point atwhich vapor is given off in the tank 87, the vapor is drawn through theradiator passages 93 into the circuit just described and past the valve99 and returned to the jacket. air which may be entrapped in the vaporescapes in the tank 96 past the valve 97.

W hat I claim is 1. In a cooling system for internal combustion engines,the combination of a j acket; a tank; a connection between said tank andsaid jacket; a radiator; a connection between said radiator and saidtank; a receptacle into which said radiator empties; a chamber joined tosaid receptacle; a pump; a restricted connection between said pump andsaid jacket; and a connection between said last named connection andsaid chamber.

2. In a cooling system for internal combustion engines, the combinationof a jacket; a tank; a connection between said tank and sald jacket; aradiator; a connection between said radiator and said tank; a receptacleinto which said radiator'empties; a chamber joined to said receptacle;2. pump; a restricted connection between said pump and said jacket; aconnection between said pump and said tank; and a connection betweensaid restricted connection' and said chamber. 7 i

3. In a cooling system for internal combustion engines, the combinationof a jacket;

a tank; a connection between said tank and said acket; means forlimiting the level of liquid 1n said tank; a radiator; a connectionbetween said radiator and said tank; a

vapor space associated with said radiator to which said last namedconnection leads; a receptacle into which said radiator empties; achamber joined to said receptacle; 2. pump; a Venturi connection betweensaid pump and-said jacket, anda connection between said venturi and saidchamber.

4. In a cooling system for internal com bustion engines, the combinationof a jacket; a tank; a connection between said tank and said jacket; aradiator; a connection between said radiator and said tank; a receptacleinto which said radiator empties; a

chamber open to the atmosphere joined to said receptacle;'a pump; aVenturi connection between said pump and said jacket; and a valvedconnection between said chamber and said Venturi connection.

Any

5. In a cooling system for internal com- T a tank located above saidjacket; a connection between said tank and jacket; a radiator joined tosaid tank; a pump; a connection provided with a restricted passagebetweensaid pump and jacket; a connection between said restrictedpassage and said radiator; and a connection between said pump and tank.

6. In a cooling system for internal combustion engines, the combinationof a jacket;

a tank located above said jacket; means to limit the level oi liquid insaid tankpa connection between said tank and jacket; a radiator joinedto said tank above the level of liquid therein; a pump; a connectionprovided with a restricted passage between said pump and jacket; aconnection between said restricted passage and said radiator; and aconnection between said pump and tank.

7; In a cooling system for internal combustion engines, the combinationof a jacket; a tank provided with a vapor space located above saidjacket; a connection between said tank and jacket; a cross flow radiatorjoined to said tank; a pump; a connection provided with a restrictedpassage comprising a Venturi tube between said pump and jacket; 9.

valved connection between said restricted passage and said radiator; anda connection between said pump and tank.

' In testimony whereof I afiix my signature.

WVELLINGTON WV. MUIR.

